ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

LM124 - LM224 - LM324

Unit

Min.

Typ.

Max.

High Level Output Voltage

Ω

Ω)

26

26

27

27

3.5

3

27

28

V

Ω)

520

20

mV

SR

Slew Rate

unity gain)

0.4

V/

µs

GBP

Gain Bandwidth Product

1.3

MHz

THD

Total Harmonic Distortion

0.015

%

Equivalent Input Noise Voltage

40

nV

√

Hz

Input Offset Voltage Drift

7

30

Input Offset Current Drift

10

200

pA/

Channel Separation (note 5)

1kHz

≤ f ≤ 20kHz

120

dB

Notes :

neous short -cir cuit on al l ampli f iers.

2. The di r ect ion of the i nput cur rent is out of t he IC . Thi s cur r ent is essenti al l y constant, i ndependent of the st ate

of the out put so no l oadi ng change exists on the i nput l i nes.

4. The i nput common- mode vol t age of eit her i nput si gnal volt age shoul d not be allow ed to go negat i ve by mor e

to + 32V w i thout damage.

5. Due t o the proxi mit y of ex ternal component s insure t hat coupl ing i s not ori gi nat ing vi a str ay capaci t ance be-

tw een these ext ernal par t s. T hi s t ypi call y can be detect ed as t his t ype of capaci tance i ncreases at higher f re-

quences.

6. This input cur rent onl y exi sts w hen t he volt age at any of t he i nput leads is dr iven negat ive. It i s due t o t he

coll ect or - base juncti on of t he i nput PN P transistor becomi ng forw ar d biased and ther eby act ing as input di-

odes clamps. I n addit i on to thi s di ode act i on, there i s al so N PN par asit i c act ion on the I C chip. t hi s t ransi st or

over dri ve) f or t he ti me dur at ion t han an input i s dr iven negati ve.

This i s not destr uct i ve and nor mal out put wi l l set up again f or i nput vol tage higher t han - 0.3V.

LM124 - LM224 - LM324

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